Rotative motor.



' No. 763,868. PATENTED 'JUNE 28, 1904.

P. 'BXLINR ROTATIVE MOTOR.

APPLICATION FILED AUG. 25, 1902. No MODEL. 2 SHEETS-SHEET 1.

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PATENTED JUNE 28, 1904.

1". BXLINB. ROTATIVE MOTOR.

APPLICATION FILED AUG. 25, 1902.

No MODEL.

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No. l762,868.

UNITED STATES Patented J une 28, 1904.

PATENT OEEIcE.

FRANK EXLINE, OF GEDDES, SOUTH DAKOTA, ASSIGNOR TO THE EXLINE MOTOR AND PUMP COMPANY, OF GEDDES, SOUTH DAKOTA.

ROTATIVE MOTOR.

SPECIFICATION forming part of Letters Patent No. 763,868, dated June 28, 1904.

l Application filed August 25, 1902.

To all whom, it 11i/ty concern,.-

Be it known that L FRANK EXLTNE, of Geddes, in the county of Charles Mix and State of South Dakota, have invented certain new and useful Improvements in Rotative Motors; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to a novel apparatus in the nature of al rotary motor adapted for actuation by water, steam, air, or other fluid. A device embodying my invention may, however, be driven by suitable power, in which case it may be used as a pump for liquids or a blower for air or gases.

The invention consists in the matters described, and pointed out in the appended claims.

ln the accompanying drawings, ill-ustrating my invention,`Figure 1 is a view in central vertical section of a form of apparatus embodying my invention adapted for use as a watermotor. Fig. 2 is a vertical transverse section of the same, taken on line 2 2 of Fig. 1. Fig. 3 is a sectional View similar to Fig. 1, showing a modified form of apparatus embodying my invention, the same showing aform thereofI adapted for use with a descending current of water. Fig. 4 is a view in cross-section takenv on line 4 4 of Fig. 3.

As shown in said drawings, A A designate two rotative disks or wheels, which are mounted eccentrically with respect to each other and are arranged parallel with eachother at some distance apart.

B B B indicate blades or paddles, which are located between the marginal parts of the disks A A and are pivotally connected with said disks by means of pivot-pins O C', which pivot-pins are arranged parallel with each` other, the pivot-pins O being attached to the disks A and extending toward the disk A, while the pivot-pins O are attached to the disk A and extend toward the disk A. Said pivot-pins C C are connected with said blades B B B by means of bearing-strips I) 7)', secured serial No. 120,890. (No model.)

to the saidY blades near the side edges thereof and provided near their ends with bearingapertures for the pivot-pins, these parts being so disposed that said pivot-pins may turn freely in said bearing-strips. The distance between the central axes of two pivot-pins engaging any one of the blades is equal to the distance between the axes of rotation of the two disks A A, which, as before stated, are

arranged eccentrically with respect to each other, and the pivot-pins for each blade are located in a plane parallel with the plane passing .through the said axes of rotation of said disks AA. It follows from this construction that when both disks are revolved they will turn together or maintain the same relative position with respect to each other and that all of the blades will remain in planes parallel with each other and with a plane passing through the axes of rotation ofthe two disks. Moreover, it will also be seen that the blades and pivot-pins constitute operative connections between the two rotative disks A A', by

which the same are caused to turn or rotate together.

' D indicates a casing which surrounds the disks A A and blades B and which is provided with opposite parallel side walls D' D2, adjacent to which the two disks A A are located, and with a peripheral wall D3, shaped to correspond generally with the oval path followed bythe outer edges of the said blades in the rotation of the same with the disks. The casing D is shown as provided with a tangential inlet-passage Di and a like outlet-passage D5. In the particular construction shown the side walls D D2 of the casing D are arranged in vertical planes, so that the disks A A turn upon or about horizontal axes.

As a means of mounting or supporting the eccentric disks A A the said disk A is adapted to turn upon a pivot-stud E, secured to the side wall D of the casing, while the disk A is attached to a rotative sleeve F, which has bearing in a bearing box or sleeved on the wall D2 of the casing, said sleeve extending through said bearing to the outer side of the casing and having aiiixed to its outer end a pulley Gr, whereby the rotary motion of the disks A and A/ may be transmitted to a ma-v chine or part to be driven by the motor.

lVithin the casing between the adjacent faces of the disks A A' and within the space surrounded by the blades B is a filling member, body, or drum H, consisting in the machine illustrated of two parallel heads H H2 and a peripheral wall H. The heads H H2 are located closely adjacent to the disks A A, and the outer surface of the drum is shaped to conform generally with the path followed by the inner margins of the blades B during the rotation of the disks A A', except that at the side of the casing D remote from the openings Dl D5 a space is left between the surface of the drum and the adjacent inner surface of the casing-wall D3 wide enough to afford passage for fluid around the drum from the inlet-opening D4 to the outlet-opening D5. At the side of the casing between the inlet-opening D'l and the outlet-opening D5 the drum approaches closely to the wall of the casing, leaving a space wide enough only to permit the passage of the blades B, which at this point are moved edgewise, or nearly so, in the turning of the disk.

As a means of supporting the drum H in position within the central space of the apparatus a construction is provided as follows: The pivot-rod or trunnion E, which forms a bearing for the disk A,is extended through a hole in the adjacent wall or head H of the drum and is provided at its inner end with an enlargement or flange L, through which are inserted bolts by which said flange is rigidly secured to the head of the drum. At the opposite side of the casing a stationary pivotstud or trunnion J is located-within the hollow shaft or sleeve F and is secured to the head H2 of the drum by means of a flange 'j at theinner endoof said trunnion,secured by bolts to the inner face of the drum in the same manner as described in connection with the trunnion E. The outer end of the trunnion J is rigidly attached-to a pedestal or standard J', which is secured on a base-plate D, on which the casing is supported. rlhe trunnions E and J being rigidly attached to the heads of the drum and also rigidly attached to supporting partsin one instance to the side wall D' of the casing and in the other instance to the rigid pedestal J .-said drum is by said trunnions immovably Vsupported in place betweenthe rotative disks A and A.

The operation of a device made as above described when used as a water-motor is as follows: Tater enters the inlet-opening D, passes through the casing around the drum H, and makes its exit from the opening D5. As it passes from the inlet-opening D4L past the adjacent side ofthe drum H it acts on the blades B in a direction at right angles to the same and carries said blades, together with the margins of the two disks with which they are pivotally connected, in an inward direction or away from said inlet-opening. The current of water then passes around the drum toward the side of the casing at which the outlet-passage D5 is located and thence between the side of the drum and the side wall of the casing toward said outlet-passage-at this time acting on the opposite faces of the blades B and servingito carry the same toward the said outlet-passage. By reason of the fact that the blades are always held parallel with each other and are always located in planes at right angles to the direction of the current entering the inlet-opening D'L and passing out of the outlet-passage D5 the current of water at the entering and eXit sides of the casing will act on the blades at right angles thereto, thereby avoiding' the resistance tothe movement of theblades which would result from the same moving through the current of water enter.- ing and passing out of the casing in an inclined or angular position with respect to said current.

As a further and additional improvement the blades B are shown in said Figs. 1 and 2 as made of equal thickness throughout and so arranged that'the pivot-pins C and C are located between the opposite parallel faces of the blades, and such blades are made approxio mately equal in thickness to the narrow space between the drum and the wall of the casing between the inlet and outlet openings. By this construction the blades are adapted to fill the said space or opening so as to prevent loss of power through theescape of liquid therethrough at the sides of the blades. The parallel faces of the blades illustrated, having bearing-strips 6b', as described, are formed by means of parallel sheet-metal plates Iapplied tothe opposite faces of the bearing-strips and extending around the pivot-rods at the edges of the blades.

As a still further improvement the blades B are shown as made of curved or concavoconveX'form, with their concave sides facing' the inlet-opening of the casing. rl`he curved formV of the blades enables the same to fit more closely in the narrow space between the drum and casing, it being'found that when the blades are curved approximately in the shape illustrated the opposite surfaces thereof will remain in contact with the drum andcasing at the opposite sides of said openings, thereby preventing the escape of fluid through said space between the blades and the drum en the one hand and the blade and the side of the casing on the other.

`The apparatus above described and as shown in Figs; l and 2 may manifestly be used as a Vpump for liquids oras a blower for air or gases. When used for either 'ofthese purposes, suitable power will be applied to the pulley G for the purpose of driving the disks A A and giving rotative movement to the blades B in the easing. Assuming the opening D'L to be the inlet-opening' and the open- IOO IIO

ing D5 to be the exit-opening of a pump or blower, said blades in their rotative movement will act in right angles upon the stream or current of liuid entering the inlet-opening D4 and will also act at right angles upon the stream or current passing from the exit-opening D, with the result that the movement of the entering and departing streams of current will in no way be retarded by the passage of the blades obliquely through said entering and departing currents, as would be the case if the blades were arranged radially.

- Now'referring to the construction shown in Figs; 8 and 4, J J indicate leccentricallymounted rotative disks, and K K blades mounted on pivotpins Z Z, secured in the disks J J', respectively, said blades K being provided Vwith bearing-strips Zn, by which the same are mounted on the said pivot-pins. L indicates a casing or -housing which in this instance does not completely surround the disks and blades, but incloses the lower parts of the same only and is extended upwardly at one side of the same for attachment to a supply pipe or spout L, which extends tangentially from the peripheral wall of the casing and is upwardly and outwardly inclined. Said casing L is also provided with an exit-passage L2, which extends obliquely downward from the lower part of said casing, being arranged tangentially with respect to the peripheral wall of the same. l'n this instance the pivotal axes of the two disks J J instead of being located in the same vertical plane, as in Figs. 1 and 2,

are arranged in an oblique plane which is at right angles to the inlet pipe or spout L, it being obvious from thisconstruction that inasmuch as the blades K are always parallel with eachv other and with a plane passing through the axes of rotationv of the two disks said blades will always stand at right angles to a current of water entering through the said inlet passage or. spout L. The apparatus in this instance, as in that before described, is provided with a central body or drum, (indicated by M in the drawings.) Means forpi'votally supporting the disks J J and for sustainingthe drum M in position between the disks is in this instance provided as follows: The disk J is attached to a shaft'N, which is mounted to rotate in a bearing-sleeve Z2, formed on the side wall of the casing L. rlhe shaft -N extends through the adjacent side wall M of the drum M and has a bearing in said side wall aswell as in the opposite side wall M2 of said drum. The disk J is attached to a shaft O, which has bearing in a bearingsleeve Z3, formed on the side wall of the casing L, and said shaft O is provided with an extension O, which passes through the wall M2 of the drum M and lhas bearing in said wall and also in the opposite wall M of said drum. serve to support the drum M in its position rl`he two shaft extensions N and O- within the casing, while at the same time turning in their bearings in the drum. The shaft O is provided on its outer end with a pulley P, by means of which rotary motion given to the shaft O by the turning of the blades K and the two disks J and Jmay be transmitted to a machine or part to be driven.

ln the operation of the device shown in said Figs. 3 and t the current of water descending through the inlet-passage L acts upon the blades K, which being at right 'angles with the said current of water receive the direct pressure ofthe same while it is passing through the confined passage between the drum M and the adjacent wall of the casing. It will be observed that this form of device is somewhat in the nature of an undershot water-wheel, it being intended that the water shall accomplish its work on the descending paddles which are at any one time in position beneath the inlet or supply passage and that the water shall How freely and without pressure outwardly through thel delivery-passage L2.

A device embracing the general features of construction above set forth when used as a motor or meter and actuated by a fluid supplied thereto under pressure or by a iiuid acting by gravity or impact, as in the case of an undershot water-wheel, or when used as a pump or blower will have inclosing walls 1ocated inside and outside of the curved path of the blades and arranged to form a passage or channel adapted to direct the current of Huid which acts upon the blades or is acted upon thereby in a course at right angles to the planes of the blades. While in the drawings the said inner wallof the passage is shown as formed by a hollow interior drum, yet such inner wall may be formed by a drum open at its ends or by a solid body or by anv inner wall which extends through a part only of the entire path of the blades, so that it confines the currentA of water in that part of said path of the blades in which the Water acts on or is acted on bythe same. As, for instance, in the construction shown in Fig. 3 of the drawings the part onlyof the wall of the drum adjacent to the descending blades is actually operative, while that part adjacent to the ascending blades and, in fact, all of the drum except that which confines the current while acting on vthe descending blades is not essential to the operation of the parts and maybe omitted, it

1 being merely desirable, but not necessary, that water should be excluded from the space within the path of the blades.

I claim as my invention- 1. An apparatus for thepurposes set forth, comprising two eccentrically-mounted disks, parallel blades pivoted to said disks, walls within and outside of the path of the blades forming a passage or channel adapted to direct a current of iiuid at right angles to `the said blades, and means for supporting the wall IOO i I l within the blades arranged concentrically with one of the disks and extending through the same.

2. An apparatus for the purposes set forth, comprising two eccentrically-mounted disks, blades pivoted to the disks, a casing inclosing said disks and blades, an interior body located between the disks and within the path of said blades, and means for supporting said body extending through one of said disks concentrically with the axis of rotation thereof.

3. An apparatus for the purposes set forth, comprising two eccentrically-arranged disks, blades pivoted to said disks, a casing inclosing said disks and blades, a wall located inside of the path of the blades and forming with the adjacent parts of the exterior wall of the casing a passage or channel for fluid, and means for supporting said wall extending through one of said disks concentrically with the axis of rotation thereof.

4. An apparatus for the purposes set forth, comprising two eccentrically-mounted disks, parallel blades pivoted to said disks, an interior body located between the. disks within the path of the blades, a casing forming with the said body a passage or channel for fluid, and means for supporting said interior body attached to the opposite sides thereof and extending through the said disks concentrically with the axes of rotation thereof.

5. An apparatus for the purposes set forth,

comprising two eccentrically-mounted disks,

blades pivoted to the said disks, a casing inclosing said disks and blades and provided with inlet and outlet passages, an interior body located between the disks within thev path of the blades, means for supporting the said body extending through one of said disks concentrically w ith the axis thereof; said body being extended nearly to the side wall of the casing at a point between the inlet and outlet passages, so as to afford a narrow space for the passage of the blades.

6. An apparatus for the purpose described comprising two eccentrically-arranged disks, blades pivoted to said disks, a casing surrounding said blades and disks, an interior body located between the said disks within the path of the blades, a trunnion secured to the side wall of the casing on which one of said disks turns, said trunnion being attached at its inner end to said body, and a sleeve to which the other disk is attached, said sleeve extending through and having bearing in the opposite side wall of the casing and another trunnion which passes through said sleeve, and is rigidly attached at its outer end to a stationary support and at its inner end to said body.

7. An apparatus for the purposes set forth,

comprising two eccentrically-mounted disks,

parallel blades pivoted to the disks, an interior body, a casing surrounding the disks and blades and provided with inlet and outlet openings, means for supporting the interior body extending through one of said disks concentrically with the axis of rotation thereof, said body forming with the part of the casing between the inlet and outlet openings a narrow space for the passage of the blades, and said blades having vopposite parallel side faces.

8. An apparatus for the purposes set forth, comprising two eccentrically-mounted disks, blades pivoted to the disks, an interior body, a casing surrounding said disks and blades and provided with inlet and outlet openings, means for supporting the said interior body extending through one of said disks concentrically with the axis of rotation thereof; said body forming with the part of the casing between the inlet and outlet openings a narrow space for the passage of the blades and said blades being of curved form and having parallel side faces.

9. An apparatus for the purpose set forth comprising two eccentrically-mounted disks, blades pivoted to the disks, and an interior body, saidblades consisting of bearing-strips and sheet-metal side plates attached to the opposite sides of said strips. f

10. An apparatus for the purposes set forth, comprising two eccentrically-mounted disks, parallel blades pivoted to said disks, a casing surrounding said blades and disks, an interior body located between said disks within the path of the blades, and a trunnion which is attached to the said interior body, which passes through one of said disks concentrically with the axis of rotation thereof, and is rigidly attached at its outer end to a stationary support.

In testimony that I claim the foregoing as my invention I affix my signature, in presence of witnesses, this 18th day of August, A. D.

FRANK EXLINE. Witnesses:

R. A.- TUCKER,

RoLIND A. TUCKER, WILLIAM A. HAvENs. 

